I can no longer send e-mails but i can recieve???

[NORM1218]

This is the error message i get.

Your server has unexpectedly terminated the connection. Possible causes for
this include server problems, network problems, or a long period of
inactivity. Subject 'running', Account: 'mail.btinternet.com', Server:
'mail.btinternet.com', Protocol: SMTP, Server Response: '451 See
http://pobox.com/~djb/docs/smtplf.html.', Port: 25, Secure(SSL): No, Server
Error: 451, Error Number: 0x800CCC0F

 

[Frank Saunders MS-MVP IE,OE/WM]

This is the error message i get.

Your server has unexpectedly terminated the connection. Possible causes
for
this include server problems, network problems, or a long period of
inactivity. Subject 'running', Account: 'mail.btinternet.com', Server:
'mail.btinternet.com', Protocol: SMTP, Server Response: '451 See
http://pobox.com/~djb/docs/smtplf.html.', Port: 25, Secure(SSL): No,
Server
Error: 451, Error Number: 0x800CCC0F

Email scanning should be turned off in any anti-virus. Also exclude EML
files from the scan. It provides no protection not provided by the regular
resident protection.
Besides that, McAfee and Norton are not compatible with Windows Mail and
Outlook Express and should be uninstalled. The latest version of Trend's
anti-virus seems to be causing problems too.